Script to evaluate butterworth parameters
Altair EmployeeHello everyone,
I would like to share with the community a script that allows the user to test different parameters of a filter to see if the filtered signal is good or not.
From line 3 to 16 you can edit the parameters to change both the signal and the filter behaviour. After the script finishes it is possible to check the original and the filtered signal, as wall as the FFTs.
Highlighted in yellow are the frequencies of the signal and the plots obtained:
<?xml version="1.0" encoding="UTF-8"?>
PS: It's also possible to use filtfilt instead of filter to keep the signal phase
<?xml version="1.0" encoding="UTF-8"?>
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Altair Employee nice! /emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20' />
Adding the newer version because the legend was backwards. The script will first use first the low pass filter then the high pass filter
<?xml version="1.0" encoding="UTF-8"?>
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